Back to EveryPatent.com
United States Patent | 5,670,858 |
Heath | September 23, 1997 |
An electronic control apparatus to operate an alternating current induction motor protecting same from power line blackouts, brownouts and providing self-adjusting, linearized, non-stepped reduced voltage output coinciding to work load to enhance efficiency, thereby reducing electrical energy used by the motor. This apparatus can be utilized in conjunction with a refrigerator, air conditioner or almost any home appliance to yield a substantial savings in electrical use.
Inventors: | Heath; Gary (Longwood, FL) |
Assignee: | Condyne Technology, Inc. (Longwood, FL) |
Appl. No.: | 726625 |
Filed: | October 7, 1996 |
Current U.S. Class: | 318/768; 318/786; 318/805; 318/810; 323/239; 327/79 |
Intern'l Class: | H02P 001/26 |
Field of Search: | 318/777,768,781,786,801,803,805,806,807,808,809,810,811,599,254 307/234,350,362,87,311 363/17,18,19,21,26,23,37,89,79,56,124,126,286,53,68 323/345,282,323 361/75,96 |
3882364 | May., 1975 | Wright et al. | 318/786. |
3913002 | Oct., 1975 | Steigerwald et al. | 363/18. |
4004215 | Jan., 1977 | Jauniszko | 363/23. |
4052648 | Oct., 1977 | Nola. | |
4266177 | May., 1981 | Nola. | |
4330816 | May., 1982 | Imazeto et al. | 363/56. |
4355274 | Oct., 1982 | Bourbeau | 318/812. |
4382217 | May., 1983 | Horner et al. | 318/786. |
4404511 | Sep., 1983 | Nola. | |
4412158 | Oct., 1983 | Jefferson et al. | 318/257. |
4417190 | Nov., 1983 | Nola. | |
4417193 | Nov., 1983 | Hirata | 318/803. |
4426614 | Jan., 1984 | Nola. | |
4433276 | Feb., 1984 | Nola. | |
4439718 | Mar., 1984 | Nola. | |
4459528 | Jul., 1984 | Nola. | |
4469998 | Sep., 1984 | Nola. | |
4471421 | Sep., 1984 | Brown et al. | 363/68. |
4482852 | Nov., 1984 | Muskovac | 318/812. |
4494180 | Jan., 1985 | Streater et al. | 318/801. |
4539562 | Sep., 1985 | Sanders | 307/350. |
4604563 | Aug., 1986 | Min | 318/786. |
4825351 | Apr., 1989 | Uesugi | 363/89. |
4910447 | Mar., 1990 | Masters | 318/599. |
4935691 | Jun., 1990 | Lamar | 323/323. |
______________________________________ U.S. Pat. No. Inventor Issue Date ______________________________________ 4,052,649 Nola 10/04/77 3,307,084 Ogle 02/28/67 4,788,485 Kawagishi 11/29/88 3,124,734 Sampietro 03/10/64 3,105,180 Burnett 09/24/63 3,775,652 Bowler 11/27/73 4,186,334 Hirata 01/29/80 3,758,836 Shibata 09/11/73 3,763,417 Johnston 10/02/73 ______________________________________